Energy suppliers are required to take all reasonable steps to install smart meters in GB domestic and smaller non-domestic consumer premises by the end of 2020. This includes installations in premises (including some multi-dwelling units) that are unlikely to be served by the 2.4GHz Home Area Network (HAN) solution. In such premises an 868MHz HAN solution or an alternative HAN solution may be required to allow smart metering devices to communicate with each other and to send consumption and tariff information to consumer devices in the premises.
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GOV.UK Closing Date: 19 May 2015